Mechanism for knotting together strands



F. KLEIN MECHANISM FOR KNOT'IING TOGETHER STRANDS Filed May 29. 1930 5 Sheets-Sheet 1 July 21, 1931. F. KLEIN 1,8

MECHANISM FOR KNOTTING TOGETHER STRANDS Filed May 29, 1950 5 sneets-shet' 2 Falls-rial? #54191,

July 21; 1931. F. mm 1,815,849

MECHANISM FOR KNO'ITI'INQ TOGETHER STRANDS Filed May 29, 1930 S Shee'tS-She et 5 9 37 k l E 5 36 Q 4 H: I l I", b I m 1- 11 I l V I i@ 12 1 KT" l I] "'\LI| I 2.2

Y avwemtoz, 6L vedgrzck/flan,

F. KLEIN MECHANISM FOR KNOTTING TOGETHER SI'HAN DS Jul 21, 1931.

Filed May 29. 1930 5 Sheets-Sheet 4 July 21, 1931 v F. KLEIN 9 MECHANISM FOR KNOTTING TOGETHER STRANDS Filed May 29, 1930 5 Sheets-Sheet 5 Patented July 21,1931

smnEmC n m-w coiirnen 1 0mm} N'EwiYoRx, Assrenoni TO WAR? 'rwrstrme mi M I E gam y BROOKLYN, new YORK,'.A CORPORATION on NEW: Yonx k ivrEoHAiv IsM r03 xnorrrne TOGETHER s'rnAnns A lication filed May 29,

This invention relates to, mechanism" for uniting threads or'other strands by a knot and particularly y that, simplei'formlof knot in whichthetwoend portions of the strands,"

( projecting in, the same direction, extend around the strands/to forma loop and then through 'theloop} In general, the -object is to provide a reliable and efficient 'mechanism "for :tying s'trands togetherhowe'ver fine in quality thejstrandsimay happento be. More specifically; the objecti is to provide a mech anism ctor "tying knots which may be used in '1 the'jstead of the twisting mechanismof a machine for uniting warp threads of the class -.-repres'ented "by United States I Letters Patent; No; 1 ,690,157 fand those therein mentioned and in cooperation "with' the other 'instrumentalities of such a machine concernedin the selection and; proper-feeding of the strands or threadsoffthe two warps ((old and new) successively fromsuchwarpsj it being recognizedTthat certain strands cannot be twisted together properly and must be united by knotting as those characterizingthe fabric 7' In the dr awings -r/ b known ias, FGeorgetteQ or anyothe'r textile where tightly twistedyarnis used. v.

1 is a side elevation of a machine em bodying the improvedLknot-tying fmechanisrn and; with certain guides "5 ofga fork 2 jshownin other vi'ews, instrumentalities for supporting the warp,'0ld and new; andselect ing and advancing therefroin the strands to I eithe beams tor the two warps; 1

7 Fig. 2]is a front elevation and of said mechanism;

be united by said mechanism; 1 y

Fig- 1a is a front elevationof thesame, and

ag s plan;

' Fig. 5 is a'front-to-rear vertical sectional view substantially coincident with 'spindle'19" views respectively;corresponding to Figs. 6 to 12,;ihc1usive51but showing the parts in side 1930. Serial No. 457,431.

elevation, except for the part 19 20, a a is in section; and

Fig. 13 is a transverse sectional View of'thei three tying blades on line 13-13, Fig 6a. B

When, as in accordance'with my specific ob je'ct, a machine embodying my knotting' I mechanism is employed like that shown i'n Fig." 1, the two warps (old and new) will be suspended from cl amping means 1, extend ing subject in any way to suitable tension down between the members'of a fork 2' and then in opposite directions to their supply beams A. (Fig. 1a), and the'strands, released in pairs (one from each warp) successively bythe means 3, will by the (spiral) means! he successively fed forward, beingdelivered patents mentioned. My mechanism i's'incor porated in the pl'aceot the fixed and rotating members of the twisting means o the tionedpatents, to wit,' it is supported by the fixed shaft- 8 and the 'rotatingshaft 9 geared with the shaft of meansA: as shown at"1 0, p A

shaft 9' also affording the medium for driving 1 p certain elements which actuate moving parts a of the knotting mechanism as will ap'pear. 11:10 is a stationary fork which'steadies the two strands when advanced and delivered to the knotting mechanism by the guides 5 0i" fork2. s Q

The frame of theknotting mec-hainisni in-. cludes' as its principal parts the frame proper l1 (fixed to shaft- 8 andhaving a bearingsupportion shaft 9), a bracket 12,'securedto the' front of the frame-proper by screws 13 '1andl having" a dished apertured and f 'forwardlyf reaching seat 14, and a tubular bearing'mem 'ber 15 having an annularenlargement or shousinglfi formed with a convex periphery I (which engages inthe concave side of the seat and is held therein by a; sc'rew 17 and dished washer 117a) said bearing mernber I projecting through a hole lla, Fig. 4, in-the; f. a frame proper. Inbeayingm b iswjourix naled the body or spindle 19of the tying:

bill, the same being confined against endwise movement by a head 20 on its rear end and a pinion 21 secured on its front portion within housing 16. The pinion is'in mesh with a gear 22 on shaft 9 and since the axis of the tying bill body or spindle is inclined down- I wardly and forwardlyas shown the teeth of the pinion are bias-cut; the pinionand'gear is 21."

The tying bill includes three bladesin gear-ratio of the aminated relation rr nged ee trii calmer the 19', the intermediate blade 23, which longitudinally inovable, having a long shank reaching .throughand protrude ing from the front ofsp'indle'la' and the other. two, 2i and 25, having T-shapedshanks the cross-arms of which are held in a cros ciiti26 inithejhead; 20'fofs saidspindle by a split disk 27 secured'to said:headbyscrews .28. and; slotted to receive all three blades. 1 Theiblads.have1tside byside ja ws at their one f reanends which. form what I terin the-gripperlof;thev billgyThe jaw of blade 2-3 has;

atiits forwardmarlginon-onejside a shearing and onthe otherr'side. a rounded or, gripping edge; the. jawpf-l lade d hasat'. its. rear.

margin andi'lofn the side next to blade 23 shearingedge to. coactgwith the shearing edge;

ofthat blade; andzfthejaw .of blade 25 ;a rl'oiindedi grippingedge to, coactwith the grippingfedgeof that bladesee"Figs. l3 and Go to liga ;'Blade 23hasat'its rear-margin a shoulderf-23a, and-blade: 24 a hook or horn ZQ -prpjecting oppositely'jto the mentioned jawsjofalljthree blades (andgiving it and in fact the. bill as Y agwhoile an anchor-like form); the purposes of, -whjch will appear.- When the bladje. 23 shifted rearward it fornusa crotch-29 (FigJlOa) to receive the twostrands-, and;b, and when it is shifted forwardsuch strands will he firstgripped by thetwo coactiiig gripping edges andzthen severedgby the two coacting shearing edges of the b'la'de jaws, suchegripping. and severing, withends .ojf the strands left gripped by the jaw of blades 23 -2 5 until thebill isopened the ensuing rearward shifting of blade 23,-

being in: itself known when the :j aw is fiQrl t fd"and the-gripper-is closed the grip per tapers to substantially a point. w v The, shifting of blade 23 "is obtained from aQ cani BO on shaft 9 through a lever 31fulcruined in bracket 32 affixed to the housing 16 of bearing rnembenlaand thus forming part ranieand pivoted to a-ring 33 engaged groove 34 of a collar 35' in "effect penetratingithelblade and s-oconpling it to the collar." Thus while the tying bill is'b'eing rotated the blade 23 is jreciproc'ated relatively m 1nih0lding thestiands it is necessarythat thejh 'ead of theibill formed ,by the gripper spli'ned' sp1ndlel9 by the pin 36 engaging a l t attire spindle asshown in Fig. 5, said pin' passes rearward of the upstanding portions- ..of the strands and forward of their horimet r rt e m or t e. her 0 1 hook 24a :i-t *passesforward ofall portions of the strands. To-accoinp'lish this the spindle l9 isinclined downward and. rearward and the apex of the gripper is'arranged to travel in an orbit-in a plane p p, Fig. 6a, which cuts the (here vertical) plane occupied by the horizontal and vertical portions of the "strands above their horizontal portions and lies forward of them. and the apex of the hook 24a is arranged to travelin'an orbit parallel with planenpfip and wholly forward of all said strandportionsa V It is' preferable to provide a stranderetainfer, as 3Theref shown attached tothe'frame proper. 11 and projecting'rearwardly: so as. to: receive "in its notch shown (Figs. 5, and 6) strand wwhen the strands have been advanced asdescribed into the control of the hooks of guides 5.;

rotating with. shaft 9 and having itsend bifurcated as shown-inFig. '3 sothatwh'en it approaches theposition for tightening the. knot aS1Will appear) ,-is forked end 38a then moving downtoward'stranfd Z1, suchend will straddle; the then. upright --anchor-shaped. head oftheknotting bill. 1 a :7, Operation: The starting position ofthe ljillin. a cycle ojfits operation (two-revolution's thereof'to one of shaft 9) is that shown in Figs. 5; and 66a,',wh'ere the gripper thereof projectsiipwardly; during the preceding half-revolution, while the bill blades" were more-,or-iless horizontahlthe two strands/a and b were advanced by the means 4: and left caught by-the hooks of'guides 5' andthen, inciden't'to the actionof means 7 carried fore ard bythese guides so that their upstanding portions are placed forward or inward of the orbit ppoffthef-bill gripper when it reaches said starting position, the horizontal v portion of strand (1/, being, however, rearward or outward ofsaid orbit. X In Figs. 7:76; the bill 'has turned a quarter-revolution, its gripper rearwardly clearing said upstanding portions of the. strands At the halfrevolution sta'geQ'Figs. 8%8a, the shank portionfof the 'billp'roper, formed by theshanks of itsblades, has forced said'porti'ons asidefiand f'orhied. in'the strands a bend' w," the freefend of the gripper having "passed down forward ofthe horizontalport'ion ofstrand b and the its in'g portiz iits of: hesteamds ar rearward or outward has rammed the upstanding porr the strands-ti) I has be gnnte camibael; the'horizontaIportion stran a and theo eration has reached" 1th -winception of the formation;ofalo'op'g IQ) "aroundthefgripperfthe guides-5 'liavi-ng now recededirom the-strands; At:

thei'oompleti'on offth'e first revolution, Figs. 1 0-4100;, this loopgy 'is'pompleted; it isheld trom s1ipping=ofithe tapered gripper, Whose I apex now projects up'wardlmby th'eshoulder "23a" :tlade23 having been moved rearward so that the gripper is open. {At thefifth quarter revolution stage-Figs, 11-11a the open gr ip'per haslj received the upstanding portions of the strands" (it being noted that theiformi'ng of theyloopf around the gripper has diverted the upstanding portions'of the quarter stage, Figs 1242a, the gripper has close'dand'gripped the strands and 's'evand by fde'presfsingltl reini cons'tricts the loop,

by the downward ig ir'essure' and the taper oafthe (closed) bill iti-s l ips'jo fi the latte'r'ont'o the' sti ll' gri ned end portions of the strand, i ghtened orf cornpleted knot z. I In h y l ereriti b r h s mtdi e P i o Thefunitingof *s trand's bjra'knot such as is? formed-by the pres'ent; mechanism, using a 'tying bill having'a' gripper rotatingj in' an ,of f thej strandlmanipulatedby the' xbill lie entirely side by side, My invention distin guish'es* r"rom th-is'in-tha-t it includes means (as which holds thestrands so that they stand side {by side and then. di'w' 'erge in substantially -'opposite directions,

and that tlieg'r-ippfer ot the tin-111a revoluti'o'ifi passe-s "outward/of the side-by side por-- tions 7 and inward of; the jdiverging "portions .ofthe"* strands, in they actual embodiment thisresults from the' orbital path of thegripk ,per teingin a plane obliquely related to that 0t 'tliejstrands,such as the 'fplane, p p-1efer-red to; w'ili venti'on further distin- (irate bis-1, are named by "it, man order to series the, stramovesin the games-= k and the gripper strands from the vertical); At the sixth- 11670111 51011 the bill opens to re 5 'l6asethe;u-nitedstrands-"preparatoryto the orbital path, is "not new where the portions gtii-s he's trom any previoustying mechanism ecoen'tri callylin the-rotary spindle 19. the outset of a tying'operation' theguides 5', j acting as means to hold' "the-strands in-reach;

.vto tiefthe knot' the'bill, saidorbital-path, orfiaroundthd I I I L form a looparoundthe gripp'enfsaidgripper" strands from thejmeans 5 to the knowing: b

means (billyit is-obviously not broadlyma teifial WhiCh Qf them moves towardl the" other to permitthe transfer.

'As hereinbefore indicated, on forming the. loop-on the herei'nbefore designated project'- ing part 'or gripper .(or as it may {be other- Wise termed, the looper thereof) it is held against slipping offprenraturelyby the loop stop formed by shoulder 23a, which isth'enunsheathed with respect tothe" loOpe'r-cdniponents 24 and 25 but becomes sheathed thereby when blade 23 is later moved'for Ward, thereby releasing the loop, So tar as: I am aware, a looper so constituted isnew in-thi's art. 1 I v if When the strands are held taut (as newt) between the instru'mentalities 1 and A it is necessary to cause movement of onefor' the other of them tor'elax each'istra'nd during the knottingso" as not toru-pture ityas'suma ing of course that the strand cane-not stretch appreciably without breaking; Hence the clamp 1' is carried bya reciprocating Structure 1a which'has a cross-groovelb in which *p-lay-sa roller 10: on a disli'lcl on'the shaft; of the "cam 7, whereby on'every reciproca tion' of the fork or revolution of shaft 9 the means 1 will descend'to relax the strands, 7

'.Having thus fully described my invention WhatI claim is: r v 1. In combination, supporting Inea1is,a tying bill revolubl'e therein 'and' ha\ ing"af strand gripper projecting angtrlarly with re spectto its axis fof rotation, means to hold.

the strands to'be knotted together 'Sdthat they standjin part side: side and then it i diverge "in approximately opposite time: tions, and ineansto rotate said bill and in a revolution thereof cause the gripper to pass o outwardof the side-by-side portion's'an'd then a I inward of "both diverging portions of the strands, thus during such revolution to form aloop 'aroundthe bill, said gripper being adapted on completion of the loop to grip said side-by-side portions,iwhereby on slip}; ping of the loop oltithe free end of thegrip-f per While'itstill holds said side-by-side per tions a knot maybe formed in the strands; 2. In; combination, supporting means, a tying'bill revoluble therein and having an strand gripper'projecting angularly with re: spect to its axis of rotation and astrand dea. fiector, means to hold the strands tobe knotted together so that'they stand in partside by side and then diverge in approximately r63 so 110 3. 1 1 combinatiomvsupporting means, a tying bill revoluble therein and having a strand gripper projecting angularly with respect to its axis of rotation, and means to hold the strands tobe knotted together'so that-they stand in part side by side, with I their side-by-side portions relatively inward with their diverging portions relatively outof the orbital path of the'gripper, and then diverge in approximately opposite directions,

ward of said path, thus during a revolution side-by-side portions of the bill to form a loop around the same, said grip-per being adapted on completion of the, loop to grip said side-b-y-side portions,

. whereby onslipping of the'loop off the free end of the gripper while it still holds said a knot may be formed in the strands; 9 I 1 4. In-combinatijon, supporting means, a tying bill revoluble therein and having a strand gripper projecting angularly with respect'to its axis of rotation and a strand cleflector and means to hold thestrands to be knotted together so that they stand in part side by side, with their side-by-side portions relatively inward of the orbital path of the gripper and outward of the orbital path of the deflector, and then diverge in approximatelyoppo'site directions, with theiridiverging' portions relatively'outward of both of said paths, thus during a revolution of the bill to form a loop around the gripper, said gripperbeing adapted on completion of the loop to grip the side-by-side portions, whereby on slipping of the lop oil the free end'of the gripper while it still holds said side-by-side 7 portions a knot may be formed in the strands.

5. In combination, supporting means, a tying billv revoluble therein and having a strand gripper projecting angularly with respect to its axis of rotation, and meansto hold the strands to beknotted together so thatlengths thereof lie approximately in a givenplane and they stand in part side by side and then diverge, said bill having its' said axis arranged obliquely to said plane and so that the orbital path of the gripper is relatively outward of the side-by-side and inward of the diverging portions of said lengths, thus during a revolution of the bill to form a loop around the same, and said gripper being adapted on completion of the loop to grip said side-by-side portions, whereby on slipping of the loopvoflf the free end of the gripper while it still holdssaid side-by-side portionsa knot may be formed in the strands. 6. In 7 combination, supporting means, a

tying bill revoluble therein and having a; strand gripper projecting angularly with re-- 5- spect to its 'axiso'f rotation, and means.

hold the strands to be knotted together so that lengthsjthereof lie approximately in a givenplane and they: stand in part side by side and then diverge,said bill having its saidaxis arranged obliquely to said planeand so that the orbital-path of the gripper is relatively outward of the side-by-sideand inward of the diverging portions of said lengths andalso having. a' strand deflector projecting angularly to said axis and whose orbital path is inward ofall saidportions,

thus during a revolution of the bill-to formv a loop around the gripper, and said gripperv beingadapted on completion of the loop to grip said side-by-sideportions, whereby on slipping of the loop off the free end of the gripper while it i still holds said 7 side-by-side portions aknot may beformed in the strands.

.7. Mechanism to form a'knot in a strand including, in combination,supporting means, means therein to hold the strand to be knotted with a bend therein, a tying bill revoluble in the supporting means with its axis of roe-1:

tation nearthe bend and extending. through the plane thereof, said bill having a strand,

gripper proj ectingqangularly with respect to the bill, and means to rotate the bill and in a revolution thereof cause the gripper to pass;

outward of one portionof the strandextending from the bend andthen inward iof the other such portion, vthus during such revolution to form a loop around the'bill, ,said gripper beingadapted on completion-of the loop 'togripthe first-named portion, whereby on slipping of the loop off the free end ofthe gripper while it still holds saidfirst named portion a knot may be formed in the strand.

8. Mechanism to form a knot in a strand 7 including, in combination, supporting means, means therein to hold the strand to be knotted with a bend therein, a tying'bill V revoluble in-the supporting means with its axis of rotation near the bend and extending through the plane thereof, said bill having a strand gripper projecting angularly with respect to the bill and a strand deflector,

and means to rotate the bill and in a revolution thereof cause the gripper'to pass out-' ward of one portion of thestrand extending from its bend and then inward of theother such portion and the deflector to pass inward whereby on slipping of the loopoii thefree end of the gripper while it still holds said in the strand,

9. Mechanism including, in combination, supporting means,

a tying vbill revoluble therein and having first-named portion a knot may be formed a strand gripper projectingangularly with respect to its axis ,of-rotation, and meansv to to form a knot strand of both said portions, thus during such revo-r lution to form a loop around the gripper, said gripperbeing adapted on completion" of th'eloop to grip the first-named portion,

' he d these-en t be "hee d-W th; bendv therein and with one :portion of the strand i -qtion. of the- ,-bill to for na..loop -around the bill, said gripper being-adapted on comple- ,tion {of :the loop to grip the first-named pors, by n lipr e he l r ef th tree {end of thengripperwhile it stillholds said lirst-named.portionalznot may be damned n th tr n Mechanism to, form ,aknot in ,a strand includ n eem in supp ting m a tying bill revoluble therein and having a stra d s ipp r 'n ej tins e-nsu ar y t speotao its axiso f rotation anda strand dek y ng nl e e v lubl therein, pa ins rume eli ie h elin ea endee strand t h k ott d, anql et-rend-delir ra" means mei ta ning a b n in t e extended pan i .i leetor, and means to hold the strand to Joe ikanett dr h a bend. h i a w t :ene

end inw d and he t er n l ip tie e t- WfiIfdyQffihB orbital pathof the gripper and k th sa d perti ns eeward of th l rh :pa h iefrt defl elterg thu uni g a r volutiennf th h l (t o m J p ar nd he ignipper, ig r pper be ng adapt d. on Ce -.-p tio .o .1th :loep i e, g p h firs -nam d portion, whereby on slipping of the-loop oii gthe freeend dfthe gripporwhile it still holds isaid first-named.portion-afknot may --be :formed'iinethe strand. 5 I

Mechanism :todorm a :knot in a strand z iincluding, inzcombina-ti'on, supportingmeans,

- ta tying shill lreyoluhle therein and having a strand gripper projecting angularly zwithjr speet' to litsiaxis of rotation, land means to iholdthe strandto be knotted With a bend therein, said bill .having iits saidu'axis ara a ngedpobliquely 'ftO' therplane of said bend -andaso that theyorbital 8p ath of ;the gripper :iS relatively outward of one portion of the strand extendingirom the bend and inward ".ofithe' othersuchportion thus during a revolution ,of' the bill ltO form a loop around the .sam'e, ,said gripper being adapted .on coinv pletion .of the loop 'tO grip the first-named portion, whereby on slipping of the loop 0d ithe free end ofgthe gripper While itstill holds said tfir-st-na1ned gportion a hnotmay "be formed in the strand.

"'Meohanisn1 to -fo rrn a knot inastrand inoluding,in combination, supporting means,

pert en o are. tne da x ml ns t em the th :fiXlS of the tying" means.

aid 'g inner' ei g dap d en i empleti enf he er to rips-the fir zaame .ner ian wh e y l pp n ef the 0 10 fi the r e d e th ie inpe wh it st l helel e i i 1 e med p -ti r e V Jme may h tanned in the strand, I v V,

ln m n, s rp ntine structu a knot-tying means revoluble therein, spa ned:

' nstmmenteliti ihe d ns xt nd d st an to, be knotted, and strand-delivery aneans naintaining bend ,in the extended pa nt of the seoondknamed means.

14. In combination, supporting struoture,

the strand and movable toward theftying the stranchone of said neans being movable t erel thee th r.su stanti llyi na hirise 9 th ee' eei th yi g an nhe ebyz e'ree nit transferqof the strand troin the firstto 1 In ina io u-i px z .i'ng=stnicturi,

spaced .instru nentalities holding extended Ea t a d to h iknett d, trand-delivery means ,abend in the extended apart oi the strand, and knot-tying means refvolubl'e 1 in apatharound the first nalllsd meansand adap ed-112 'sr' e ive the strand therefrom 1:6 combi nation, supporting structure, I spaced instrumentalities holding extended .a strand to be knotted, strand .delivery .means maintaining a bend inathe extended part' rod h etrand, and zkliotaying" imeansre'volubl e e 1. is V in a path around the first-.namedaneans sand adapted to receive ithG strand ztherefrom, one 0 Sfl mB3I Sfbeing movable rfro niand'toa ward the ,other' substantiallyilengthwise' of ;17-. Incombination,supporting structure," it

a iknotstying means revoluble therein, spaee'd instruinentalities holding extendedthe strands ,to ;be knotted together, and strand ldeliizery means maintaining opposite bends nthe strands and snch'bends.close together,

one of said means being movableztoward'gthe .Qther substantially ilenn thwise of the axis of the :tyi lL :means whereby to permit transfer named means.

,of the strands from the" first ito the second v a tying, bill revolnble therein and having a g I strand gripper projecting angularly with ref-;18. LIn combination, supportingstruoture, 5 spect, to its axis of rotation and a strand lrnotstyingmeansrevoluble=therein ,spaeed deflector, and means to hold the strand to be T knotted with a bend therein, said bill having orbital path of the deflector is inward of both said portlons, tlltls dlllll'lg a revolution of thehill to forms. loop aroundthe gripper,

d9. In so ginstrumentalities holding 'z extended the strands :tobe :knotted together, and stranddelineryl means maintaining opposite {bends in :the; strands and such bends close together and .moyableitoward theitying m ans:

stanti ally lengthwise of the axis oithe' 'latter whereby to permit .transier' thereto the strands. j I bllltltlOIl, supporting structure, spared instrumentalities aiding extended are the strands "to be knotted together, stranddelivery means maintaining opposite bends in the strands and such bendsclose together,

and knot-tying means revoluble in a path ing edges coactive and lengthwise of said around the first-named means and adapted to receive the strands therefrom. v

20. In combination, supporting structure,

spaced instrumentalities holding extended the strands to beknotted together, stranddelive'ry means maintaining opposite bends v in'the strands and such bends close together,

andknot-tying means revoluble in a path around the first-named 'means and adapted to receive the strands therefrom, one of said means being movable from and toward the the other substantially lengthwlse oi the axis .of the tying means.

21-. Incombination, supporting means, and tying means comprising a structure rotative in said supportlngmeans and having a projection extending angularly of its axis of rotation, a member revoluble with said structure and rectilineally movable lengthwise of said axis and having a projection extending angularly of the latter and coactive with the first projectlon'to receiveand'grip a strand,

and means to reciprocate said member.

22. In combinatiomsupporting means, and itylng means compr sing a structure rotative in said supporting means and having a proection extending angularly of its axis of rotation, a' member revoluble with said structure and rectilineally movable lengthwise of said axis and havinga projection extending angularly of the latter, said projections hav- V to shear a strand interposed between them,,andmeans to reciprocatesaid member.

V 23. In combination,asupporting structure,

member ournaled in said structure, blades arrangedln-and revoluble with said member and tying mechanism comprising a rotary and having portions projecting angularly with respect to the axis of saidmember and coactive' to receive a strand, one blade being movable relativelyto the other rectilineally axis, and means to reciprocate the movable blade while; rotating with said member.

24:. In combination, supporting structure, and ,tymg mechanism comprising a rotary member journaled in said structure, blades I arranged in and revoluble with said mem ber and having portions projectingangularly with respect to the axisofsaid member and coactive' to receive a strand, oneiblade being movable relatively to the other rectilineally and lengthwiseof said axis, a collar slidable member, means, afford angularly with respectto its axis of rotation,

' said bill comprising parts forming the looper and one of which has a projecting loop stop and one of which is movable back and forth:

"relatively to the othertoplace said stop in or out of unsh'eath'ed relation to said other part. r

26. In combination, supporting structure, spaced instrumentalities holding a strand extended, one being movable relatively to' the other to relax the strand, means to form a knot in the extended "portion of the strand, and means to move the movable instrumental ity to relax the strand while the knot: is being formed therein;

27; A knot-tying mechanism including a rotaryknot-tying means having its tying portion arranged totravel in, and projecting substantially lengthwise of, an orbit around the axis of rotation'of said means, and means to' hold the strand to be tied in position to be engaged by said portion while rotating.

28. A knot-tying mechanism including a knot-tying bill rotative in, and having its tying portion projecting substantially lengthwise of, an orbital path, and means to hold position to be en-' the strand to be tied in gaged bysaid bill. v

29. A knot-tying mechanism including a rotary knot-tyingbill having a shank and a tying portion pro ecting angularly from the shank, said shank being eccentric :of theaxis of rotation of the bill, and means to hold the strand to be tied in position to be engaged by v said bill. I

'30. A knot-tying mechanism' including means to hold two strands with opposite bends therein and such bends close together,

JUU

and knot-tying means movableiin an orbit 7 crossingboth portions of each strand flanking its bend and into engagementwith the strands while the latter are so held.

31. A knot-tying mechanism including means to hold two strands with *oppo'site bends therein and suchbends close'together,

and a knot-tying bill movable transversely of itself andin an orbit crossing both portions of each strand flanking its bend and intoengagement with the strands while the latter are so held. V

In testimony whereof I affix' my signature.

FREDERICK KLEIN.

ing a spline-connection between the collar and said member, toiconnectthe collarwith the moVable,blade,-and mean's'to reciprocate the collar while said member is rotating.

-A revoluble tying bill-of the class described having a strand looper projecting llll 

